Laravel-datatables: डेटाटेबल्स फ़िल्टर काम नहीं कर रहा है

इसलिए मैं लार्वा 5.4 का उपयोग कर रहा हूं और अपने वाक्पटु के साथ डेटाटेबल्स अजाक्स का उपयोग तालिका में शामिल हो गया है और इसी तरह, अब मैं इसे खोज/फ़िल्टर करना चाहता हूं, बस काम नहीं कर रहा है आंतरिक सर्वर त्रुटि 500 ​​​​कोई विचार क्यों?

यहाँ मेरा नियंत्रक कोड है `

public function index()
    {
        try{
            return view('admins.'.$this->kelaspath.'.index');
        }catch (Exception $e){
            return Redirect::back()->withInput()->with('errormessage',$e->getMessage());
        }
    }

    public function data_kegiatan()
    {
        $data = Kegiatan::with('tempat','sasaranhub.sasaran','prasyarat.kegiatan','total_peserta');
        $datatable = Datatables::of($data)
        ->editColumn('kota', function($data){
            return $data->tempat ? $data->tempat->kota : $data->kota;
        })
        ->editColumn('tempat', function($data){
            return $data->tempat ? $data->tempat->name : '';
        })
        ->editColumn('tanggal', function($data){
            return $data->tanggal ? with(new Date($data->tanggal))->format('d F Y') : '';
        })
        ->editColumn('tanggal2', function($data){
            return $data->tanggal2 ? with(new Date($data->tanggal2))->format('d F Y') : '';
        })
        ->editColumn('status', function($data){
            if($data->status == 1){
                $status = '<a class="btn btn-default btn-sm nopointer"><i class="fa fa-pause"></i> <span class="hidden-xs">MENUNGGU</span></a>';
            }elseif($data->status == 2){
                $status = '<a class="btn btn-warning btn-sm nopointer"><i class="fa fa-circle-o"></i> <span class="hidden-xs">PENDAFTARAN TERBUKA</span></a>';
            }elseif($data->status == 3){
                $status = '<a class="btn btn-warning btn-sm disabled"><i class="fa fa-ban"></i> <span class="hidden-xs">PENDAFTARAN TERTUTUP</span></a>';
            }elseif($data->status == 4){
                $status = '<a class="btn btn-primary btn-sm disabled"><i class="fa fa-dot-circle-o"></i> <span class="hidden-xs">BERJALAN</span></a>';
            }elseif($data->status == 5){
                $status = '<a class="btn btn-primary btn-sm nopointer"><i class="fa fa-times"></i> <span class="hidden-xs">TERLAKSANA</span></a>';
            }elseif($data->status == 6){
                $status = '<a class="btn btn-danger btn-sm nopointer"><i class="fa fa-times"></i> <span class="hidden-xs">BATAL</span></a>';
            }else{
                $status = "-";
            }
            return $status;
        })
        ->editColumn('sasaranhub', function($data){
            $sasaran = '';
            if(!empty($data->sasaranhub)){
                foreach ($data->sasaranhub as $sr) {
                    $sasaran .= '<a class="btn btn-info btn-xs nopointer marginbottom" >' . $sr->sasaran->name . '</a> ';
                }
            }
            return $sasaran;
        })
        ->editColumn('prasyarat', function($data){
            $prasyarat = '';
            if(!empty($data->prasyarat)){
                foreach ($data->prasyarat as $pr) {
                    $prasyarat .= '<a class="btn btn-info btn-xs nopointer marginbottom">' . $pr->kegiatan->kode . ' - ' . $pr->kegiatan->name . '</a> ';
                }
            }
            return $prasyarat;
        })
        ->addColumn('durasi',function($data){
            $mulai = new \Carbon\Carbon($data->tanggal);
            $startTimeStamp = strtotime($mulai->subDays(1));
            $endTimeStamp = strtotime($data->tanggal2);
            $timeDiff = abs($endTimeStamp - $startTimeStamp);
            $numberDays = $timeDiff/86400;
            $numberDays = intval($numberDays);

            return $numberDays;
        })
        ->rawColumns(['sasaranhub', 'prasyarat','status'])->make(true);


        return $datatable;   
    }

और यह मेरा डेटाटेबल jQuery है

var table = $('#dataTables-example').DataTable({
        dom: '<"top"B>t<"bottom"p>',
        processing: true,
        serverSide: true,
        ajax: '{!! route('admins.kegiatan.data_kegiatan') !!}',
        responsive:{
            details:{
                type: 'column',
                target: -1
            }
        },
        columns: [
            { data: 'id', name: 'kegiatan.id', visible : false, searchable : false },
            { data: 'status', name: 'kegiatan.status',visible : false, searchable : false  },
            { data: 'name', name: 'kegiatan.name', className: 'warptext'},
            { data: 'kota', name: 'kegiatan.kota'},
            { data: 'tempat', name: 'kegiatan.tempat',className: 'warptext'},
            { data: 'tanggal', name: 'kegiatan.tanggal'},
            { data: 'tanggal2', name: 'kegiatan.tanggal2' },
            { data: 'durasi', name: 'durasi', render: function(data){
                return data ? data + ' hari' : '-';
            }},

            { data: 'status', name: 'kegiatan.status'},
            { data: 'sasaranhub', name: 'kegiatan.sasaranhub' },
            { data: 'prasyarat', name: 'kegiatan.prasyarat', render:function(data){
                return data ? data : '-';
            } },

            { data: 'min', name: 'kegiatan.min' },
            { data: 'max', name: 'kegiatan.maks' },
            { data: 'max', name: 'kegiatan.terdaftar'},
            { data: null, orderable: 'false', searchable: 'false', className:'control', defaultContent: ''}
        ],
        buttons: [
            {
                extend:'colvis',
                columns: ':gt(1)',
                text: '<i class="fa fa-table"></i>'
            },
            {
                extend:'colvisGroup',
                text: 'Semua',
                hide: [0,1],
                show: ':hidden'
            }
        ],
        language: {
            buttons : {},
            select:{
                rows:{
                    _: "",
                    0: "",
                    1: ""
                }
            },
            "sProcessing":   "Sedang proses...",
            "sLengthMenu":   "Tampilan _MENU_ entri",
            "sZeroRecords":  "Tidak ditemukan data yang sesuai",
            "sInfo":         "Tampilan _START_ sampai _END_ dari _TOTAL_ entri",
            "sInfoEmpty":    "Tampilan 0 hingga 0 dari 0 entri",
            "sInfoFiltered": "(disaring dari _MAX_ entri keseluruhan)",
            "sInfoPostFix":  "",
        }
    });
    $('#searchtext').keyup(function(){
        table.search($(this).val()).draw() ;
    });

और यहाँ भी मेरी तालिका html है

<div class="input-group tabletools">
    <div class="input-group-addon"><i class="fa fa-search"></i></div>
    <input type="text" id="searchtext" class="form-control" placeholder="Kata kunci pencarian...">
</div>
<table class="table table-hover" id="dataTables-example" cellspacing="0" width="100%">
    <thead class="bg-light-blue-active color-palette">
    <tr>
        <th hidden>id</th>
        <th hidden>status</th>
        <th data-priority="1">Nama </th>
        <th>Kota</th>
        <th>Tempat</th>
        <th class="sort" data-priority="4">Mulai</th>
        <th data-priority="3">Selesai</th>
        <th>Durasi</th>
        <th data-priority="2">Status</th>
        <th class="none">Sasaran</th>
        <th class="none">Prasyarat</th>
        <th class="none">Min</th>
        <th class="none">Maks</th>
        <th class="none">Terdaftar</th>
        <th></th>
    </tr>
    </thead>
</table>